Camera
hideA camera is a device that records images, either as a still photograph or as moving images known as videos or movies. The term comes from the camera obscura (Latin for "dark chamber"), an early mechanism of projecting images where an entire room functioned as a real-time imaging system; the modern camera evolved from the camera obscura.
Cameras may work with the light of the visible spectrum or with other portions of the electromagnetic spectrum. A camera generally consists of an enclosed hollow with an opening (aperture) at one end for light to enter, and a recording or viewing surface for capturing the light at the other end. A majority of cameras have a lens positioned in front of the camera's opening to gather the incoming light and focus all or part of the image on the recording surface. The diameter of the aperture is often controlled by a diaphragm mechanism, but some cameras have a fixed-size aperture.
A typical still camera takes one photo each time the user presses the shutter button. A typical movie camera continuously takes 24 film frames per second as long as the user holds down the shutter button.
For more information about Camera, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
News tagged with camera
Hubble's Deepest View of Universe Unveils Never-Before-Seen Galaxies (w/ Video)
Dec 08, 2009 |
4.7 / 5 (49) |
33
(PhysOrg.com) -- In 2004, Hubble created the Hubble Ultra Deep Field (HUDF), the deepest visible-light image of the Universe, and now, with its brand-new camera, Hubble is seeing even farther. This image was ...
Pioneering images of both martian moons (w/ Video)
Space & Earth / Space Exploration
Dec 11, 2009 |
4.5 / 5 (17) |
0
(PhysOrg.com) -- For the very first time, the martian moons Phobos and Deimos have been caught on camera together. ESA's Mars Express orbiter took these pioneering images last month. Apart from their ‘wow’ ...
Toshiba Launches Highest Density Embedded NAND Flash Memory Modules
Dec 15, 2009 |
4.9 / 5 (10) |
1
Toshiba Corporation today announced the launch of a 64 gigabyte (GB) embedded NAND flash memory module, the highest capacity yet achieved in the industry.
Bees show off the perfect landing
Dec 23, 2009 |
4.5 / 5 (8) |
0
(PhysOrg.com) -- Honey bees undergo a sudden transition from speeding aircraft to hovering helicopter as they perform the delicate art of landing on a flower.
Sony signs 3-D video deal for 2010 World Cup
Dec 04, 2009 |
5 / 5 (5) |
0
(AP) -- The 2010 World Cup is going 3-D. Sony Corp. said Friday it has signed a deal with FIFA, the international football governing body, to record up to 25 World Cup games in 3-D - a technology that gives ...
NASA unveils latest results from lunar mission
Space & Earth / Space Exploration
Dec 15, 2009 |
4.6 / 5 (5) |
0
NASA's current mission in orbit around the moon, the Lunar Reconnaissance Orbiter, or LRO, has been providing crucial insights about our nearest celestial neighbor since its launch in June. At a scientific ...
Studying a Star Before it is Born
Dec 04, 2009 |
4.6 / 5 (5) |
1
(PhysOrg.com) -- The first phase of a star's formation are thought to begin deep inside a natal cloud of gas and dust. In the earliest stages, material coalesces under the influence of gravity into so-called ...
Controlling the TV with a wave of the hand
Electronics / Consumer & Gadgets
Dec 23, 2009 |
4.2 / 5 (5) |
2
Touchscreens are so yesterday. Remote controls? So last century. The future is controlling your devices with a simple wave of the hand.
Whose Tattoo Is It Anyway?
Dec 14, 2009 |
4 / 5 (1) |
0
(PhysOrg.com) -- An infra-red digital camera could be a crucial tool in the fight against crime when trying to identify suspects by their tattoos, according to new University of Derby research.
